HEAT INSULATION SHEETS

Appropriate value

Material grades	Standard	Heat proof	High strength		High temperature proof		Bakelite (JIS PL-PEM)	Bakelite (JIS PL-FLE)
			Standard	Thickness high precision	Standard	Thickness high precision
Standard type	HIP	HIPH	HIPX	-	-	-	HIPP	HIPC
A/B dimension designation type	HIPS	HIPHS	HIPXS	HIPXTS	HIPLS	HIPGTS	HIPPS	HIPCS
Bolt hole type	HIPS-4H,6H	HIPHS-4H,6H	HIPXS-4H,6H	HIPXTS-4H,6H	HIPLS-4H,6H	HIPGTS-4H,6H	HIPPS-4H,6H	HIPCS-4H,6H
Boring type	HIP-□□□□	HIPH-□□□□	HIPX-□□□□	HIPXT-□□□□	HIPL-□□□□	HIPGT-□□□□	HIPP-□□□□	HIPC-□□□□
Heat resistance	5	9	4		9		3	3
Insulation Efficiency	5	2	6		7		9	8
Bending strength	5	3	10		6		-	-
Compressive strength	5	3	10		8		6	5
Charpy impact value	5	4	10		9		5	6
Workability	5	5	3		5		9	9
Cost benefit	5	8	3		2		10	9
Destruction temperature (note 1)	400°C	700°C	300°C		500°C		180°C	180°C
Recommended temperature (note 2)	220°C or lower	500°C or lower	180°C or lower		400°C or lower		100°C or lower	100°C or lower

(note 1)"Destruction temperature"indicates a point where carbonizing, rupture, melting starts. Be sure to use at a temperature below recommended temperature.
(note 2)"Recommended temperature"indicates temperature at which no sudden quality drop occurs when it is used for a long term.

Material grades				Standard	Heat proof	High strength
Items		Unit		HIP□	HIPH□	HIPX□
General characteristics	Specific gravity	-		2.0~2.2	2.0~2.2	1.8
	Water absorption	%		2~5	4~6	0.03
Electrical characteristics	*Volume resistivity	Ω-cm	4h/150°C	2.0×1014	1.0×1012	2.0×1015
			100h/ 25°C/ 90%RH	3.0×109	1.0×107	1.0×1014
	Flatwise breakage voltage	kV/mm		5~7	3	27
	Surface resistance	Ω		-	-	2.0×1015
Mechanical characteristics	Bending strength	(SI unit)MPa		98~147	44~54	400~500
		kgf/cm2		1000~1500	450~550	4000~5000
	Compressive strength	(SI unit)MPa		147~294	117~147	500~580
		kgf/cm2		1500~3000	1200~1500	5000~5800
	Charpy impact value	(SI unit)J/cm2		1.4~1.5	1.0~1.1	9~10
		kgf·cm/cm2		14~15	10~11	90~100
Thermal characteristics	Expansion coefficient	I/°C		6.6×10-6	9.0×10-6	1.6×10-4
	Thermal conductivity coefficient	(SI unit)W/m·K		0.71	1.21	0.59
		cal/cm·sec·°C		1.7×10-3	2.9×10-3	1.4×10-3
		kcal/h·m·°C		0.61	1.04	0.50
	Specific heart	(SI unit)J/g·K		1.08	0.92	1.15
		cal/g·°C		0.26	0.22	0.28
Arc resistance		sec		180	240	180
Principal components	Main binder	-		Inorganic material (Borate type binder)	Inorganic material (Phosphatic type binder)	Organic material (Super heat proof epoxy resin)
	Base material	-		Glass fiber	Glass fiber	Glass fiber

Material grades				High temperature proof*		Bakelite (JIS PL-PEM)	Bakelite (JIS PL-FLE)
Items		Unit		HIPL□	HIPG□	HIPP□	HIPC□
General characteristics	Specific gravity	-		1.95~2.05	2.0~2.1	1.4	1.4
	Water absorption	%		0.05~0.06	0.1	0.5~0.6	0.9~1.4
Electrical characteristics	*Volume resistivity	Ω-cm	4h/150°C	5.7×1016	1.0×1015	3.0×109	4.0×108
			100h/ 25°C/ 90%RH	8.2×1015	1.0×1013	9.0×108	5.0×107
	Flatwise breakage voltage	kV/mm		9~10	-	24~30	13~20
	Surface resistance	Ω		3.0×1016	-	5.0×1010	9.0×108
Mechanical characteristics	Bending strength	(SI unit)MPa		147	120~130	-	-
		kgf/cm2		1400 ~ 1500	1200 ~ 1300	-	-
	Compressive strength	(SI unit)MPa		440~461	420~480	294~392	245~294
		kgf/cm2		4500 ~ 4700	4200 ~ 4800	3000 ~ 4000	2500 ~ 3000
	Charpy impact value	(SI unit)J/cm2		6.0	2.5	1.88	2.10
		kgf·cm/cm2		61.7	25.5	18.9	21.2
Thermal characteristics	Expansion coefficient	I/°C		2.6×10-5	2.3×10-5	1.6×10-4	0.6×10-4
	Thermal conductivity coefficient	(SI unit)W/m·K		0.24	0.3	0.21	0.38
		cal/cm·sec·°C		0.58×10-3	0.7×10-3	0.5×10-3	0.9×10-3
		kcal/h·m·°C		0.21	0.26	0.18	0.32
	Specific heart	(SI unit)J/g·K		0.99	0.90	1.60	1.30
		cal/g·°C		0.24	0.22	0.38	0.31
Arc resistance		sec		345	-	-	-
Principal components	Main binder	-		Inorganic material (Silica type binder)	Inorganic material (Silica type binder)	Organic material (Phenol resin)	Organic material (Phenol resin)
	Base material	-		Glass fiber	Glass fiber	Craft paper	Cotton cloth

Note:Shown are examples of measurement values and are not guaranteed values.
* Volume resistivity:top row values are measured after 4h/150°C, bottom row values under room temperature after 100h/25°C/90%RH.
* Upon use, make sure to check the temperature characteristics of mechanical strength(see the charts on)PDF (121KB)
* High temperature proof sheets include two products made by different manufacturers.
* For Material Safety Data Sheet (MSDS), please visit our homepage. (https://jp.misumi-ec.com/tech/msds/)

When machining, be sure to suck up dust into a dust collector so that it may not scatter. Safety measures for usual works in dust, such as masks and goggles, are required as the insulation sheets contain glass fiber which may affect the skin such as itching. When dust attaches to the machine, its accuracy may diminish.
Drilling holes in the insulation sheet may cause cracks. Attention needs to be taken to hole pitches, diameters, and etc.
These insulation sheets are lamination-formed products, and not suitable for tapping and 3-dimensional machining.

Machining Conditions

	Lathe turning	Milling	Drilling
Tools	Carbide (K-10)	Carbide (K-10)	Carbide (K-10)
Cutting speed V(m/min)	Blade: Large~Small 45~200	Blade: Large~Small 100~300	Blade: Large~Small 120~350
Revolution (rpm)	Blade: Large~Small 50~1000	Blade: Large~Small 300~1000	φ2 gimlet 1000~1500 φ5 gimlet 500~1000
Cutting depth (mm)	0.5~0.3	0.5~2.0	-
Feed (mm/revolution)	0.1~0.2	0.1~0.2	0.1~0.5

The above values are for reference only.

The insulation sheet may break when the bolt is tightened too hard.
Do not use in areas where water, chemical or any liquids may come in. Insulation sheets that has absorbed water can be easily cracked, and cause significant degradation in their performance by increasing temperature.
When using the insulation sheets(Heat proof)at 300°Cor more, there may be some smoke or odor at first, but does not affect the product quality.
Refer to PDF (121KB) for property charts(durability data)on insulation sheets.
Material Safety Data Sheet (MSDS) is published on our homepage.
(http://jp.misumi-ec.com/tech/msds/)